.ep-shell{font-family:Arial,sans-serif;border:1px solid #ddd;background:#f4f4f4}
.ep-header,.ep-footer{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;background:#c40000;color:#fff;gap:10px;flex-wrap:wrap}
.logo{font-size:24px;font-weight:bold}.tools button,.ep-footer button{padding:8px 10px;border:0;background:#fff;color:#c40000;border-radius:4px}
.ep-main{display:flex;min-height:700px}.ep-thumbs{width:90px;background:#fff;overflow:auto;border-right:1px solid #ddd}
.thumb{padding:12px;border-bottom:1px solid #eee;cursor:pointer;text-align:center}.thumb:hover{background:#f0f0f0}
.ep-stage{flex:1;position:relative;display:flex;justify-content:center;align-items:flex-start;padding:15px}
#epCanvas{max-width:100%;box-shadow:0 2px 10px rgba(0,0,0,.25);background:#fff}
.nav{position:absolute;top:50%;transform:translateY(-50%);width:17px;height:31px;border:0;border-radius:8px;background:rgba(0,0,0,.65);color:#fff;font-size:28px;opacity:0;transition:.2s}
.ep-stage:hover .nav{opacity:1}.left{left:10px}.right{right:10px}
@media(max-width:768px){.ep-main{flex-direction:column}.ep-thumbs{width:100%;display:flex;height:60px}.thumb{min-width:50px}.nav{opacity:1}}